diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 111622b66a..33afa7e546 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,10 +21,10 @@ jobs:
         key: ${{ runner.os }}-gems-${{ hashFiles('Gemfile') }}
         restore-keys: |
           ${{ runner.os }}-gems-
-    - name: Set up Ruby 2.6
+    - name: Set up Ruby 2.7
       uses: actions/setup-ruby@v1
       with:
-        ruby-version: 2.6.x
+        ruby-version: 2.7.x
     - name: Bundle install
       run: |
         bundle config path vendor/bundle
diff --git a/.travis.yml b/.travis.yml
index 8c3b6969af..93b1b538e0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ rvm:
  - 2.4
  - 2.5
  - 2.6
+ - 2.7
 script:
  - bundle exec jekyll build
  - rake 'draft[Hello\, world]'
diff --git a/appveyor.yml b/appveyor.yml
index 64545ee8b8..38e0c9564c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,7 +1,7 @@
 # appveyor.yml
 
 environment:
-  RUBY_VERSION: 25
+  RUBY_VERSION: 26
 
 platform:
   - x64